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A model passive probe for free atmosphere electric field measurements
Affiliation:1. Universidade do Vale do Paraíba, Instituto de Pesquisa e Desenvolvimento, São José dos Campos-SP 12.244-000, Brazil;2. Instituto Federal do Maranhão, Departamento de Ensino de Física, Bacabal, MA 65.700-000, Brazil;3. State Key Laboratory of Space Weather, 100190 Beijing, China;4. Instituto Nacional de Pesquisas Espaciais, Divisão de Aeronomia, São José dos Campos-SP, 12.227-010, Brazil;1. M. F. Radar, Indian Institute of Geomagnetism, Shivaji University Campus, Kolhapur 416 004, India;2. Earth & Climate Science Area, National Remote Sensing Centre, Hyderabad 500 037, India;3. School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded 431 606, India;4. Department of Physics, Bharati Vidyapeeth (Deemed to Be University), Yashwant Rao Mohite College of Arts, Science and Commerce, Pune 411 030, India;5. Indian Institute of Tropical Meteorology, Pune 411 008, India;6. Indian Institute of Geomagnetism, Navi Mumbai 418 210, India;1. College of Meteorology and Oceanography, National University of Defense Technology, Changsha, China;2. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China
Abstract:A model of a passive probe for determination of electric field strength in the free atmosphere is developed. This model shows that the same probe can be used to determine mean monosigned ion conductivity and also conduction current density. Simulation of typical experimental conditions is used to derive the response to small altitude-dependent conductivity fluctuations. Results from a passive probe sounding indicate that conduction current density was nondivergent to (at least) 26 km and that small-scale conductivity fluctuations were only around ± 3% of the mean value.
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